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A memorandum from Parametrix, Inc. summarizing research into potential roof coverings to prevent zinc leaching from galvanized steel roofs of two warehouses at Sea-Tac Airport owned by the Port of Seattle. The document outlines paint systems and synthetic covering options, with cost estimates ranging from $21K-$240K for painting and $60K-$330K for synthetic coverings across the combined 95,835 square foot roof area. Key considerations for bidding include product costs, application costs, warranties, environmental soundness, and the physical condition of the existing roofs.

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As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.

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